Product description
Functions and intended use
The unit belongs to the type of industrial equipment for controlling processes. The unit controls the
fertigation process in the horticulture industry by measuring various output values and adjusting
them to set values.
The function of the unit is to supply the desired irrigation water by suctioning in and mixing supply
water and fertilisers, while at the same time measuring and adjusting:
• the electrical conductivity of the irrigation water;
• the pH value of the irrigation water;
• the pressure and capacity of the irrigation water (optional).
The unit adjusts these output values to values that have been set by programming from a local or
remote process computer. For operation, a local process computer can be equipped with a local
wireless network.
Suctioning and mixing of supply water and fertilisers
The unit draws in the diluted fertilisers that have been dissolved in water from several fertiliser tanks
and mixes them with supply water to form homogeneous irrigation water.
Optionally, it is possible to select the pre-mixing of various water supply sources and/or filtration of
the irrigation water.
Measuring and controlling the electrical conductivity of the irrigation water
The electrical conductivity of the irrigation water is a measure of the fertiliser concentration and is
measured by the unit using EC sensors. Depending on the measured values and the programmed
recipe, the process computer adjusts the quantity of suctioned-in fertilisers by controlling the fertiliser
dosing channels.
Measuring and controlling the pH value of irrigation water
The unit brings the pH value of the irrigation water to the desired level. The pH value is measured
by the unit using pH sensors. Depending on the measured values and the programmed recipe, the
process computer controls the necessary pH correction. For the pH correction, one of the fertiliser
dosing channels is used to dose acid or lye.
Measuring and controlling the pressure and capacity of the irrigation water (optional)
The pressure and capacity of the irrigation water supplied by the unit are dependent on the pump
on the unit. Optionally, you can choose to regulate the pressure of the irrigation water with a
frequency controller.
NutriJet - user - 00.00210
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